에어로빅 체조 Wenson Push Up 동작의 운동학적 분석

인희교 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this Study is to kinematically analyse Wenson Push Up motion which is C degree in dynamic muscular strength group to understand proper motion by difficulty. improve players' technique and moreover help coaches to check and estimate motions. To achieve this purpose, 5 male players who hold the high rank in sports aerobics national conference were selected and third dimension image analysis method by 2 high-speed cameras was used. 1. Moving displacement of the body center was shown 0.79±0.15 in El of X-axis and removed 0.98±0.15 to fingertip direction in E2. In E3 and E4. it appeared by 1.03±0.13. It appeared by 0.84±0.03 in Y-axis El. and moved to lower direction by 0.55±0.07 in E3. It is considered that the lower was body moving displacement on X-axis. the stabler was performance of difficulty. 2. In E2, Angle of right elbow joint was 148.52±10.35, Angle of left elbow joint was 166.3±11.39. In E3. Angle of right elbow joint was 79.34±21.30. Angle of left elbow joint was 64.24± 12.80. When right leg is placed on right upper arm. angle of left elbow is smaller than that of right elbow. This means adjusting bodily symmetry to show stable motion made angle of left elbow smaller. 3. Angular variation of right coxa was the smallest by 29.84±3.95 in E2, and the angle grow bigger gradually by 36.94±2.55 and 39.96±3.37 in E2 and E3. It is considered that while doing push-up. performing the motion with keeping small angle by trained muscle can be recognized as correct motion. 4. The speed variation of right tiptoe was fast in Phasel and Phased. In Phase2 and Phase3 the speed was decreased because while doing push-up, the speed variation of right tiptoe was not shown. This means fast performance of right leg in Phasel and Phased can show accuracy of the difficulty and size of the motion. Performing highly difficult motion in sports aerobic needs more trained muscular strength and flexibility. To make players perform accurate motion without any injury by systematical training, scientific study on ground reaction force and electromyogram is needed.

운동고령자와 비운동고령자의 관절운동범위 비교

인희교,김정룡,박지수 대한인간공학회 2006 대한인간공학회 학술대회논문집 Vol.- No.-

국내의 고령인구가 급속도로 증가하고 있는 현실에서 고령자들의 편안한 일상생활을 영위하기 위한 기초자료를 제공하고자 고령자들의 관절운동범위에 대한 연구를 수행하였다. 운동고령자 20명과 비운동고령자 20명, 20대 10명을 대상으로 목, 어깨, 팔꿈치, 엉덩이, 무릎과 발목 관절의 6개 부위에 대한 관절운동범위를 측정하여 비교하였다. 비교결과 목 관절의 경우 폄, 오른쪽 돌림과 왼쪽 옆굽힘, 어깨 관절의 경우 오른쪽 벌림, 왼쪽 폄과 벌림, 팔꿈치 관절의 경우 오른쪽 윗방향, 왼쪽 아랫방향과 윗방향, 엉덩이 관절의 경우 오른쪽 폄, 무릎관절의 경우 오른쪽 굽힘과 왼쪽 굽힘, 발목 관절의 경우 오른쪽 발등굽힘, 발바닥굽힘과 왼쪽 발등굽힘에서 각 집단별로 차이가 나타났다. 본 연구를 통하여 고령자들이 사용하는 제품이나 생활공간을 설계하는데 필요한 기초자료로 활용할 수 있을 것으로 기대된다.

스포츠 에어로빅시 High Kick 동작의 운동학적 분석

우병훈,인희교,이수재 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3

This study serves the purpose of understanding the principles of kicking moves through kinematics analysis on elite sports aerobic athletes making the movement of high kicking. The study also intends to not only help instructors and coaches understand the accurate move of high kick and make a better judgement for athletes but also lay a basic resource for them to rely on. To accomplish all this, the time span of the each phase, the displacement of COG, the velocity of left/right forefoot, the angle displacement of left/right hip joint and the angle displacement of left/right ankle joint have been studied. The conclusions were as follows; 1. It took less time at phase 3(0.40sec) and phase 5(0.40sec) of returning the leg than at phase 2(0.56sec) and phase 4(0.43sec) of kicking up. 2. The displacement of COG was low at phase 1, 3, 5(103.02±5.70, 95.33±2.45, 96.66±3.20 cm) and high at phase 2(111.18±9.97) and phase 4 (111.61±5.62 cm). 3. About the velocity of left/right forefoot, kicking up the right foot was faster than returning it at phase 1-2(1081.63±40.62an/sec) and phase 2-3(992.92±45.68 cm/sec). With the left foot, kicking up was faster than returning at phase 3-4(1116.25±63.46cm/sec) and phase 4-5(1043.63±40.62cm/ sec). 4. The left and right angle displacement of hip joint showed the maximum extension at phase 1(174.4±52.36, 162.6±05.40deg/sec), phase 3 (170.66±5.94, 165.89±4.36deg/sec), phase 5(166.18±4.83, 157.05±3.59deg/sec), phase 2(26.19±5.40deg/sec) showed the minimum angle of the right angle and phase 4(27.67±5.31deg/sec) showed the minimum of the left angle. 5. In the left and right angle displacement of knee joint, the angle displacement on the right knee joint showed the maximum extension at phase 1, 2, 3, 4(169.10±2.96, 169.91±6.20, 153.14±6.32, 162.11deg/sec) and flexion at phase 3(140.45±10.37deg/sec). The left knee joint showed the maximum extension at phase 1, 3, 4, 5(169.15±4.25, 157.99±10.82, 172.14±3.06, 168.72deg/sec) and flexion at phase 2(148.17±9.64deg/sec). 6. The angle displacement on the right ankle joint showed flexion at phase 1, 3, 4, 5(125.15±4.81, 101.66+2.80, 102.88±8.89, 106.27±5.76deg/sec) and the maximum extension at phase 2(152.22±5.18deg/sec) The left ankle joint showed flexion at phase 1, 2, 3, 5(104.90±48.10, 116.06±15.84, 106.55±8.84, 118.79±6.89deg/sec) and showed the maximum extension at phase 4(153.57 ±4.65deg/ sec).

댄스스포츠 쿠카라차 스텝 시 팔동작 유·무에 따른 지면반력 연구

최인애,인희교 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

The purpose of this study is to analysis ground reaction force with arm motion and with no arm motion at dance sport cucarachas step and to inquire effectiveness about the balancing of body in examination, then to provide quantitative informations to coaches and players. Seven female Subjects who had experienced winning a prize career form national and domestic amateur contest It is consisted of one force plate(U.S.A. AMTI 3778). Ground reaction force is established right and left direction at X axis(force at Fx), anterior and posterior direction at Y axis(force at Fy) and superior and inferior direction at Z. axis(force at Fz). It is calculated means and standard deviations for forces in motion and no-motion by using SPSS statistical analysis software(9.0 versions). T-test(significance level: p <0.05) is performed in order to get an effective method in arm motion and in no arm motion at dance sport cucarachas step. The results of this study are as follows: Breaking force show significant arm in motion and no-motion .017(p<.05) ground reaction force Fx, but driving force did not show significant. It is shown the difference to variation of posterior ground reaction force with arm motion and with no arm motion.001(p <.001), whereas it is not shown the difference statistically about anterior ground reaction force with arm motion and with no arm motion On the other hand, it is not shown the difference statistically about vertical ground reaction force Fz in this study. It is considered that the significant difference between a breaking force and a posterior ground reaction force is due to move a center of gravity by arm in motion using B. foot inside edge and a ball of foot reaction force.

리듬체조 Ring jump동작의 운동학적 분석

우병훈,인희교,이계산 한국운동역학회 2002 한국운동역학회지 Vol.12 No.2

본 연구는 리듬체조를 구성하는 기술 중에서 신체 기본요소군의 Jump에 포함되는 C난도 Ring jump의 3차원 동작분석을 통해 분석하여 선수들의 기술향상과 지도에 필요한 정량적 자료를 제공하는데 목적을 두었다. 이벤트별 소요시간에서는 E-3에서 0.409±0.017sec로 가장 긴 소요시간을 보였다. 신체중심의 변위에서는 E-3에서 88.5±1.3%로 가장 높은 높이를 보였다. 좌 · 우 발끝 속도에서는 E-2에서 각각 732.4±46.1cm/sec, 1958.4±625.1cm/sec로 가장 빠르게 나타났다. 상체후경각에서는 E-3에서 97.98degree로 가장 낮은 각도를 보였다. 슬관절 각변위에서는 E-3에서 좌 · 우 각각 69.2±5.7degree로 가장 낮은 각도를 보였다. 족관절 각변위에서는 E-3에서 좌 · 우 각각 171.3±6.9degree로 가장 큰 각도를 보였다. 이런 결과로 볼 때, Ring jump동작을 수행하기 위해서는 족관절의 신전을 통한 높은 점프로 상체를 후경할 수 있는 유연성과 체공을 시간을 갖추는 것이라고 사료된다. The study has a goal that produces abundant documents that needed for athletes to teach and progress skills by analyzing 3-dimensional action analysis of C-difficulties Ring jump included in body original elements among techniques constructing Rhythmic Sport Gymnastics. 1. It was the longest applied time delay that E-3 indicates 0.409±0.017sec in each event applied time delay. 2. It was the tallest height that E-3 indicates 88.5±1.3% in displacement of body's center. 3. It was the fastest velocity in E-2 where the velocity of left foot is 7.32.4±46.1cm/sec, the velocity of right foot is 1958.4±25.1cm/sec. 4. the lowest angle was founded at 97.8 degree in the E-3 on the trunk extension angle. 5. The lowest angle of both sides were seen at 92.8±14.9degree and 69.2±5.7degree in the E-3 on the each displacement of knee joint. 6. The highest angle of both sides were seen at 171.3±6.9degree and 167.9±8.4degree in the E-3 on the each displacement of ankle joint As a result of these studies, by jumping with ankle joint extension to accomplish the Ring jump action, it is considered to have the time of flexiblity and staying in the air which we can see in a back.

농업인 대상 단기간 생활체조 프로그램의 효과 : 노인관련 정신기능을 중심으로

권순찬,인희교,이수진 대한직업환경의학회 2011 대한직업환경의학회 학술대회 논문집 Vol.2011 No.11

리듬체조시 Balance 동작의 운동학적 분석

우병훈,인희교 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

The purpose of this study was to analyze kinematics variables on basic information for the improving the skill of balance attitude with understanding principle and development of balance attitude. For this study, national champion skilled 4 female rhythmic sport gymnastics were selected as subjects, and 3-demensional coordinates computation was used to DLT(Direct Linear Transformation) method of Walton(1981). 1. As for each phase performance time, all subjects are mo difference from phase 1 to phase 3, but phase 4 must stop attitude almost 0.433sec like as JEJ, CYR. To phase 5, during right leg gather, performance time act 0.267sec like as JEJ. 2. To displacement of COP, phase 1 is resulted lowest, and in phase 2, phase 3, phase 4 order to be high. And phase 5 is resulted again to be low. 3. To angle displacement of left heel , phase 1 is prepare position, and phase 2 is high, from phase 3 to phase 4 is resulted average 75.0. JEJ is resulted very ideal position to 85.5˚ 4. To angle displacement of right knee, phase 1 is prepare position, and phase 2 is resulted generally knee angle to be small, and phase 3 and phase 4 is resulted maximal extension to knee angle. CEJ is resulted ideal position from phase 2 to phase 5. To angle displacement of left knee, phase 1 is prepare position, and phase 2 is that support left leg and knee deep flexion during rising left leg to horizontal plane, phase 3 is extended maximal angle during maximal extension to knee angle of left support leg, phase 4 is decreased knee angle when right left is maximal rising and then resulted little power of supporting leg. But LNY is resulted very ideal left knee angle. 5. To displacement of hip joint angle, phase 1 is prepare position, and phase 2 is reduce angle during rising right leg to horizontal plane as hop joint is resulted by complex. When knee angle of left support leg is maximal extension to phase 3 and right leg is rising maximal to phase 4, the grater this angle magnitude to hip joint and then physical position straightly resulted. CEJ is that phase 4 is resulted 116.6˚ 6. To right toe velocity, toe velocity is very fast during right leg is down. Phase 1 is prepare position, and phase 2 is fast toe velocity during rising right leg to horizontal plane, phase 3 and phase 4 is resulted stop attitude to slow toe velocity. To summarize above, for fast right foot performance, accurate stop attitude and hip joint little complex, I think that performed very ideal position and effective motion as a lot of flexibility exercise training.

농업인 근골격계 질환 관리를 위한 근력 및 유연성 강화운동의 효과

권순찬,이수진,인희교,이경숙 대한산업의학회 2008 대한직업환경의학회 학술대회 논문집 Vol.41 No.-

등속성 수축 조건 하에서 허리 근육 근전도 신호의 안정성 평가

조영진,김정룡,최준혁,인희교 대한산업공학회 2011 대한산업공학회 춘계학술대회논문집 Vol.2011 No.5

본 연구의 목적은 등속성 조건 하에서 허리 근육 근전도 분석 결과의 타당성에 영향을 미치는 신호의 안정성을 평가하는 것이다. 5명의 실험자가 참가하였고, 근전도 신호를 추출하기 위하여 왼쪽, 오른쪽 척추세움근이 사용되었다. 실험의 독립변수는 허리 폄 속도(3수준: 0, 15, 30 degree/s), 힘의 크기 (2수준: 25%, 50% MVC)이고, 종속변수는 추출된 신호 중 안정된 신호의 비율이었다. 추출된 신호는 1000 ms의 윈도우 크기로 분석이 되었다. 실험 결과, 등속성 환경에서는 등척성 환경에 비해 신호의 안정성이 떨어지는 것을 확인할 수 있었다. 특히, modified reverse arrangement test에서는 허리의 폄 속도가 15degree/s 일 때는 신호의 안정성이 등척성 상황과 비슷하지만, 30 degree/s일 때는 신호의 안정성이 약 15%가 떨어지는 것을 확인할 수 있었다. 본 연구의 결과는 등속성 환경에서 신호의 모델링 및 피로 분석 시 신호에 대한 안정성 평가 기초 자료로 활용될 수 있다.

VDT 작업자를 위한 스트레칭 소프트웨어 프로그램 개발

배규정,류현철,송재철,김미정,인희교 대한산업의학회 2008 대한직업환경의학회 학술대회 논문집 Vol.41 No.-